The traditional concept of an 'embodied' resurrection (as opposed to ghosts playing harps) makes me lean towards: yes (eg the gut is part of the body). Who knows though, it's a fun question!
yeah it is :) Like, do we eat in heaven? If not, then all our little passengers must also be immortal in their resurrected form. But part of the biome is the dead bodies of those critters, and those dead bodies also affect our mood (chemistry doing its thing). So how does this work? Does heaven automatically maintain the correct chemistry in our guts to maintain our emotional and hormonal stability with needing the actual biome? Or does it maintain the biome at the correct chemistry without needing the actual ecosystem?
And other parts - do the bugs that live on our hair follicles come with us? Does hair even grow in heaven?
John's vision of heaven in the book of Revelation includes both the wedding feast of the Lamb and the trees of life that will bear 12 different fruits in season. Jesus also ate fish a few times after his resurrection to demonstrate the physicality of his resurrected body. So there is the concept of eating in the resurrected paradise of the new heavens and the new earth.